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Date:      Thu, 20 Jan 2000 18:19:43 +0530
From:      Greg Lehey <grog@lemis.com>
To:        Johnny Wu <jwu@apexusa.com>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   DPT SmartRAID V (was: DPT SmartRAID IV drivers almost released?)
Message-ID:  <20000120181943.N533@mojave.worldwide.lemis.com>
In-Reply-To: <Pine.BSF.4.01.10001171514210.18812-100000@apexusa.com>; from jwu@apexusa.com on Mon, Jan 17, 2000 at 03:35:07PM -0800
References:  <Pine.BSF.4.01.10001171514210.18812-100000@apexusa.com>

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On Monday, 17 January 2000 at 15:35:07 -0800, Johnny Wu wrote:
>
> I have a question regarding DPT drivers for their 4th generation SmartRAID
> products.

It looks to me like you're talking about the SmartRAID V.  We already
have drivers for the SmartRaid IV.

> It looks like they are coming out soon with their FreeBSD drivers,
> including a neat command-line tool to monitor/configure the system
> (although I got conflicting messages, see below).

Indeed, I see nothing of this below.

> Is it better to wait for these drivers to get into a -RELEASE, or
> just use DPT developed drivers when (and if) they do get released?

I wouldn't hold my breath for DPT to do something.  They've been a
very unreliable source of information in the past.

> I'm primary interested in implementing a hot-swappable spare RAID
> 0/1 configuration, and according to the mailing lists, but you can't
> tell if a failure occurs on FreeBSD with 3rd generation DPT
> controllers, is that right?

I don't know about that, but the performance of the III and IV leaves
something to be desired.

> Also, is it true that you can  can boot off of a logical drive on a DPT
> RAID array?  I'm also hearing conflicting information on whether you need
> a independent drive to boot or not.

I don't think so.

Greg
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